Unless the scholarship is automatic for your stats, Miami is not a safety. Move it into the category of how difficult it is to get the scholarship. WUStL and Vanderbilt tend to be reach to begin with, and more of a reach for a scholarship. Same with Rice.
South Dakota School of Mines and Technology is a safety if you have a 2.75 HS GPA and 20 math ACT, since its out-of-state cost is well under your price limit of $40,000 per year.